You should also assume that every single person you see here has multiple firearms, AR-15s to be specific and just because they left them at home does not mean they don't own them.
According to the NYT:
Federal immigration officials have detained more than 10,000 people in the last five days, a major surge that has stemmed from a push within Immigration and Customs Enforcement to increase arrest rates.
Agency leaders in recent days ordered top ICE officials to focus more of their officers’ efforts on picking up immigrants they want to deport, according to documents obtained by The New York Times and interviews with federal officials. ICE officers have arrested people at check-ins with immigration authorities, during traffic stops and on the street. The push has apparently yielded results, with recent arrest numbers roughly doubling from the 1,000 picked up each day earlier this year.